CN104829159A - A slow-release controllable polycarboxylic acid water reducer specially used for self-compacting concrete for CRTSIII type plates - Google Patents

A slow-release controllable polycarboxylic acid water reducer specially used for self-compacting concrete for CRTSIII type plates Download PDF

Info

Publication number
CN104829159A
CN104829159A CN201510131305.0A CN201510131305A CN104829159A CN 104829159 A CN104829159 A CN 104829159A CN 201510131305 A CN201510131305 A CN 201510131305A CN 104829159 A CN104829159 A CN 104829159A
Authority
CN
China
Prior art keywords
water reducer
release
self
mother liquor
water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201510131305.0A
Other languages
Chinese (zh)
Other versions
CN104829159B (en
Inventor
黄海
陈钱宝
徐涛
陈雷
梅晓君
宿万
汪志勇
许立
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Zhongtie Engineering Material Technology Co ltd
China Tiesiju Civil Engineering Group Co Ltd CTCE Group
Original Assignee
Anjui Engineering Material Technology Co Ltd of CTCE Group
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anjui Engineering Material Technology Co Ltd of CTCE Group filed Critical Anjui Engineering Material Technology Co Ltd of CTCE Group
Priority to CN201510131305.0A priority Critical patent/CN104829159B/en
Publication of CN104829159A publication Critical patent/CN104829159A/en
Application granted granted Critical
Publication of CN104829159B publication Critical patent/CN104829159B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

A preparing method of a slow-release controllable polycarboxylic acid water reducer specially used for self-compacting concrete for CRTSIII type plates is disclosed. The water reducer is prepared by compounding highly-water-reducing type polycarboxylic acid water reducer master batch, I type slow-release polycarboxylic acid water reducer master batch, 2 type slow-release polycarboxylic acid water reducer master batch, 3 type slow-release polycarboxylic acid water reducer master batch, a slow release controlling agent, a retarder, a liquid phase concrete thixotropic agent, a foam stabilizer, a defoamer and an air entraining agent. The water reducer specially used for self-compacting concrete is provided, reduces sensitivity of water using amounts of concrete, improves system performance stability, reduces thixotropic changes and has technical advantages of high water reduction rate, low doping amount, high cement variety adaptability, and the like. Construction difficulties of the self-compacting concrete for the CRTSIII type plates are completely overcome, construction and operation time of concrete is prolonged, and the problem that the self-compacting concrete is high in loss in a construction process is overcome, so that preparation and construction costs of the self-compacting concrete are largely reduced and economic benefit is obvious.

Description

A kind of CRTS III template self-compacting concrete special slow release controllable type polycarboxylate water-reducer
Technical field
The invention belongs to technical field of concrete additives, be specifically related to a kind of preparation of CRTS III template self-compacting concrete special slow release controllable type polycarboxylate water-reducer.
Background technology
Self-compacting concrete (SCC) has excellent serviceability, avoids vibrating, easy construction, becomes one of focus paid close attention in technology of high performance concrete field.Compared with conventional concrete, self-compacting concrete has excellent mobility, vibrates can realize self-compacting mold filling without the need to external force; It also has good education resistance energy and gap through performance simultaneously, is convenient to the construction of intensive reinforced components, thin-wall member and concealed work, and after ensure that construction, concrete compaction is even, improves its mechanical property and weather resistance; Due to its self-compacting characteristic, reduce concrete spouting Construction control difficulty, save a large amount of artificial and equipment cost.Therefore self-compacting concrete has huge economic benefit.
One of core technology of CRTS III plate-type non-fragment orbit, using self-compacting concrete as filling bed material, given full play to that self-compacting concrete mobility is large, system stability be strong, gap handling capacity is good, convergent-divergent is consistent with main structure body, the technical superiority of good endurance, for realize high railway knowledge technology property right completely sinicization in play the important and pivotal role.And during practice of construction, the problems such as construction environment temperature contrast is large, the concrete mixing transport engineering time is long, construction emergency case is many cannot be returned, require that self-compacting concrete mobility and system stability reach 5h when can keep, to increase construction operation time, reduce the loss caused because of material property loss, reduce construction cost, there is huge economic benefit.
Current domestic admixture synthesis and compounding process not yet realize diminishing efficiency regularity release under condition of different temperatures, self-compacting concrete high temperature long time protect collapse, concrete thixotroping is stable and the reinforcement of concrete water yield susceptibility is low.The preparation method of the special water reducer of a kind of ballastless track of high-speed railway self-compacting concrete is disclosed in CN103086634B, self-compacting concrete mobility prepared by the method keeps duration to be 4h, but unresolved concrete thixotropic property is stable and water consumption sensitive issue, more not by the functionalized design of mother liquor molecular structure, form the response pattern of diminishing efficiency to pH value and envrionment temperature and discharge; A kind of preparation method of special additive for self-dense concrete is disclosed in CN100545120C, although improve rheological characteristics and the volume stability characteristic of self-compacting concrete, but use naphthalene system mother liquor, do not meet the requirement of railway high performance additive mandatory use poly carboxylic acid.These admixtures only stress the lifting to a certain performance of self-compacting concrete, the requirement of CRTSS III template filling bed construction to Performance of Self-compacting Concrete can not be met comprehensively, low divergence (600 ~ 630mm) self-compacting concrete reaches 5h when arbitrary temperature (0 ~ 35 DEG C) condition current downflow keeps, process entails the reinforcement of concrete water yield susceptibility is low, system stable performance, and thixotroping change is little.
Summary of the invention
The construction difficult problem of self-compacting concrete in what the present invention will solve is exactly CRTS III template filling bed and other thin-wall constructions, there is provided a kind of slowly-releasing controllable type self-compacting concrete special water reducer, science to multiple slowly-releasing mother liquor, thixotropic agent and slowly-releasing control agent composite usage, realize the release of diminishing component regularity, in maintenance system, diminishing component diminishing efficiency is constant, ensure that self-compacting concrete can (600-630mm) 5h mobility free of losses at arbitrary temperature (0-35 DEG C) and low divergence condition, have the multi-functional improving concrete thixotropic behavior and improve slurry system stability concurrently simultaneously.Technical guarantee is provided for preparing the concrete that arbitrary temperature current downflow hold-time is long, water consumption susceptibility is low and thixotropic property is stable.
The present invention by the following technical solutions for achieving the above object
A kind of CRTS III template self-compacting concrete special slow release controllable type polycarboxylate water-reducer, it is characterized in that: described water reducer is by high water reducing type polycarboxylate superplasticizer mother liquor, 1 type sustained-release polycarboxylic water reducer mother liquor, 2 type sustained-release polycarboxylic water reducer mother liquors, 3 type sustained-release polycarboxylic water reducer mother liquors, control agent, retardant, liquid phase concrete thixotropic agent, suds-stabilizing agent, defoamer and air entrapment agent is composite forms, and each component effective constituent proportioning is: high water reducing type polycarboxylate superplasticizer mother liquor 3.0 ~ 5.0%; 1 type sustained-release polycarboxylic water reducer mother liquor 2.0 ~ 4.0%; 2 type sustained-release polycarboxylic water reducer mother liquors 2.0 ~ 3.0%; 3 type sustained-release polycarboxylic water reducer mother liquors 1.0 ~ 3.0%; Controlled release agent 0 ~ 0.02%; Retardant 0 ~ 3.0%; Concrete thixotropic agent conditioning agent 0 ~ 0.05%, suds-stabilizing agent 0.05 ~ 0.1%; Defoamer 0 ~ 0.07%, air entrapment agent 0 ~ 0.01% all the other be water.
Described a kind of CRTS III template self-compacting concrete special slow release controllable type polycarboxylate water-reducer, it is characterized in that: described high water reducing type polycarboxylate superplasticizer mother liquor refers to and utilizes poly glycol monomethyl ether maleic anhydride surface-active macromonomer, methylpropenyl sodium sulfonate (SMAS), methylene-succinic acid (ITA) for raw material is through free radicals copolymerization reaction acquisition ester class polycarboxylate superplasticizer mother liquor, referenced patent ZL201010515271.
Described a kind of CRTS III template self-compacting concrete special slow release controllable type polycarboxylate water-reducer, is characterized in that: 1 described type sustained-release polycarboxylic water reducer mother liquor refers to and obtains ethers sustained-release polycarboxylic water reducer mother liquor by polymerized at normal temperature; 0 ~ 35 DEG C of temperature range, initial water-reducing rate is extremely low, and after contact alkaline condition, mother liquor diminishing component concentrates on 1 ~ 2h slow releasing, referenced patent ZL201010515356.
Described a kind of CRTS III template self-compacting concrete special slow release controllable type polycarboxylate water-reducer, is characterized in that: 2 described type sustained-release polycarboxylic water reducer mother liquors refer to: obtain ethers sustained-release polycarboxylic water reducer mother liquor by polymerized at normal temperature; 0 ~ 35 DEG C of temperature range, initial water-reducing rate is extremely low, and after contact alkaline condition, mother liquor diminishing component concentrates on 2 ~ 4h slow releasing, refers to patent CN201410624218.
Described a kind of CRTS III template self-compacting concrete special slow release controllable type polycarboxylate water-reducer, is characterized in that: 3 described type sustained-release polycarboxylic water reducer mother liquors refer to: obtain ethers sustained-release polycarboxylic water reducer mother liquor by polymerized at normal temperature; 0 ~ 35 DEG C of temperature range, initial water-reducing rate is extremely low, and after contact alkaline condition, mother liquor diminishing component concentrates on 4 ~ 5h slow releasing, refers to patent CN201410597709.
Described a kind of CRTS III template self-compacting concrete special slow release controllable type polycarboxylate water-reducer, is characterized in that: Controlled release agent comprises the one in sodium carbonate and salt of wormwood.
Described a kind of CRTS III template self-compacting concrete special slow release controllable type polycarboxylate water-reducer, is characterized in that: retardant comprise carbohydrate or polyalcohols, phosphoric acid salt, hydroxycarboxylic acid and its esters one or more.Described a kind of CRTS III template self-compacting concrete special slow release controllable type polycarboxylate water-reducer, is characterized in that: thixotropic modifier comprises the one in polymeric amide and organic bentonite.
Described a kind of CRTS III template self-compacting concrete special slow release controllable type polycarboxylate water-reducer, is characterized in that: suds-stabilizing agent comprise in cellulose ethers and fatty alcohol one or both.
Described a kind of CRTS III template self-compacting concrete special slow release controllable type polycarboxylate water-reducer, is characterized in that: defoamer comprise ethers, silicone based or lipid defoamer one or more.
Described a kind of CRTS III template self-compacting concrete special slow release controllable type polycarboxylate water-reducer, is characterized in that: air entrapment agent comprise in sodium laurylsulfonate, triterpenoid saponin, colophonium pyrolytic polymer and ethers air entrapment agent one or more.
The present invention, compared with prior art achievement, has following positive achievement:
(1) apply 1 type, 2 types are different with the release timeliness of 3 type slowly-releasing poly carboxylic acid mother liquors, according to on-the-spot starting material " time-adsorptive capacity " curve to water reducer, distribute the compound proportion of high diminishing poly carboxylic acid mother liquor and 3 kinds of slowly-releasing poly carboxylic acid mother liquors pointedly, make " time-adsorptive capacity " curve of " time-slowly-releasing amount " curve of slowly-releasing mother liquor in compound system and water reducer consistent, ensure absorption consumption and the running balance of slowly-releasing burst size, maintenance system diminishing efficiency is constant, thus reaches 5h when ensureing that self-compacting concrete mobility keeps.
(2) the 3 kinds of model slowly-releasing poly carboxylic acid mother liquors used, all according to advanced molecular structure function design theory, different according to construction temperature, devise side chain lengths, eluting group kind and quantity pointedly, under ensureing 0 ~ 35 DEG C of temperature range condition, mother liquor diminishing component concentrates on section slow releasing sometime, and overcoming common polycarboxylate water-reducer performance affects large problem by temperature and time.
(3) the poly carboxylic acid mother liquor used is all obtained by polymerized at normal temperature, and environmental protection, saves a large amount of energy consumptions, have obvious social and economic benefits.
(4) creationary introducing Controlled release agent, for release sustaining component release provides a stable pH value environment, ensures the release that slowly-releasing poly carboxylic acid mother liquor can be stable in order, thus stable when ensureing water-reducing effect long.
(5) in the additive complex stage, namely thixotropic agent is dissolved in, thixotropic agent can be mixed with slurry at concrete preparatory phase, given full play to thixotropic agent for the effect improving self-compacting concrete thixotropic behavior, ensure that concrete is stablized at constructing operation stage thixotropic behavior.
(6) each mother liquor diminishing usefulness used is stablized, and water consumption susceptibility is low, introduces simultaneously and surely steeps component, thoroughly solves the problem of self-compacting concrete system stability difference.
(7) by a kind of interpolation of composite finished product admixture, just disposable low divergence (600 ~ 630mm) self-compacting concrete that realizes reaches 5h when arbitrary temperature (0 ~ 35 DEG C) condition current downflow keeps, low, the system stable performance of the reinforcement of concrete water yield susceptibility in process, thixotroping change is little.Solve the construction difficult problem of CRTS III template filling bed self-compacting concrete, for the construction of its high quality provides technical guarantee comprehensively.
(8) 1 type slow release type, 2 type slow release types, the 3 type slow release type type polycarboxylate water-reducers of the production of Anhui Zhong Ti engineering materials Science and Technology Ltd., devise the ethers poly carboxylic acid mother liquor of side chain lengths, eluting group kind and quantity targetedly, 0 ~ 35 DEG C of temperature range, initial water-reducing rate is extremely low, after contact alkaline condition, mother liquor diminishing component concentrates on 1 ~ 2h, 2 ~ 4h, 4 ~ 5h slow releasing respectively.
(9) the present invention solves the construction difficult problem of CRTS III template filling bed self-compacting concrete comprehensively, extend the concrete construction operating time, solve the problem that self-compact concrete in construction process loss rate is large, significantly reduce self-compacting concrete preparation construction cost, remarkable in economical benefits.
Embodiment
Embodiment 1
Water reducer compound proportion is as follows:
Mixing self-compacting concrete collaboration such as table 1.
Table 1 is tested with mix parameters of high-strength self-compacting concrete (units/kg/m 3)
To adopt in embodiment 1 in water reducer and table 1 concrete proportioning mixing Performance of Self-compacting Concrete as table 2.
Table 2 adopts the Performance of Self-compacting Concrete of water reducer in embodiment 1
Embodiment 2
Water reducer compound proportion is as follows:
To adopt in embodiment 2 concrete proportioning mixing self-compacting concrete in water reducer and table 1, performance is as table 3.
Table 3 adopts the Performance of Self-compacting Concrete of water reducer in embodiment 2
Embodiment 3
Water reducer compound proportion is as follows:
To adopt in embodiment 3 concrete proportioning mixing self-compacting concrete in water reducer and table 1, performance is as table 4.
Table 4 adopts the Performance of Self-compacting Concrete of water reducer in embodiment 3
Embodiment 4
Water reducer compound proportion is as follows:
To adopt in embodiment 4 concrete proportioning mixing self-compacting concrete in water reducer and table 1, performance is as table 5.
Table 5 adopts the Performance of Self-compacting Concrete of water reducer in embodiment 4

Claims (4)

1. a CRTS III template self-compacting concrete special slow release controllable type polycarboxylate water-reducer, it is characterized in that: described water reducer is by high water reducing type polycarboxylate superplasticizer mother liquor, 1 type sustained-release polycarboxylic water reducer mother liquor, 2 type sustained-release polycarboxylic water reducer mother liquors, 3 type sustained-release polycarboxylic water reducer mother liquors, control agent, retardant, liquid phase concrete thixotropic agent, suds-stabilizing agent, defoamer and air entrapment agent is composite forms, and each component effective constituent proportioning is: high water reducing type polycarboxylate superplasticizer mother liquor 3.0 ~ 5.0%; 1 type sustained-release polycarboxylic water reducer mother liquor 2.0 ~ 4.0%; 2 type sustained-release polycarboxylic water reducer mother liquors 2.0 ~ 3.0%; 3 type sustained-release polycarboxylic water reducer mother liquors 1.0 ~ 3.0%; Controlled release agent 0 ~ 0.02%; Retardant 0 ~ 3.0%; Concrete thixotropic agent conditioning agent 0 ~ 0.05%, suds-stabilizing agent 0.05 ~ 0.1%; Defoamer 0 ~ 0.07%, air entrapment agent 0 ~ 0.01% all the other be water.
2. a kind of CRTS III template self-compacting concrete special slow release controllable type polycarboxylate water-reducer according to claim 1, is characterized in that: described high water reducing type polycarboxylate superplasticizer mother liquor refers to and utilizes poly glycol monomethyl ether maleic anhydride surface-active macromonomer, methylpropenyl sodium sulfonate, methylene-succinic acid for raw material is through free radicals copolymerization reaction acquisition ester class polycarboxylate superplasticizer mother liquor.
3. a kind of CRTS III template self-compacting concrete special slow release controllable type polycarboxylate water-reducer according to claim 1, is characterized in that:
1 described type sustained-release polycarboxylic water reducer mother liquor refers to and obtains ethers sustained-release polycarboxylic water reducer mother liquor by polymerized at normal temperature; 0 ~ 35 DEG C of temperature range, initial water-reducing rate is extremely low, and after contact alkaline condition, mother liquor diminishing component concentrates on 1 ~ 2h slow releasing;
2 described type sustained-release polycarboxylic water reducer mother liquors refer to: obtain ethers sustained-release polycarboxylic water reducer mother liquor by polymerized at normal temperature; 0 ~ 35 DEG C of temperature range, initial water-reducing rate is extremely low, and after contact alkaline condition, mother liquor diminishing component concentrates on 2 ~ 4h slow releasing;
3 described type sustained-release polycarboxylic water reducer mother liquors refer to: obtain ethers sustained-release polycarboxylic water reducer mother liquor by polymerized at normal temperature; 0 ~ 35 DEG C of temperature range, initial water-reducing rate is extremely low, and after contact alkaline condition, mother liquor diminishing component concentrates on 4 ~ 5h slow releasing.
4. a kind of CRTS III template self-compacting concrete special slow release controllable type polycarboxylate water-reducer according to claim 1, is characterized in that: Controlled release agent comprises the one in sodium carbonate and salt of wormwood;
Retardant comprise carbohydrate or polyalcohols, phosphoric acid salt, hydroxycarboxylic acid and its esters one or more;
Thixotropic modifier comprises the one in polymeric amide and organic bentonite;
Suds-stabilizing agent comprise in cellulose ethers and fatty alcohol one or both;
Defoamer comprise ethers, silicone based or lipid defoamer one or more;
Air entrapment agent comprise in sodium laurylsulfonate, triterpenoid saponin, colophonium pyrolytic polymer and ethers air entrapment agent one or more.
CN201510131305.0A 2015-03-24 2015-03-24 A kind of template self-compacting concrete special slow release controllable type polycarboxylate water-reducers of CRTS III Active CN104829159B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510131305.0A CN104829159B (en) 2015-03-24 2015-03-24 A kind of template self-compacting concrete special slow release controllable type polycarboxylate water-reducers of CRTS III

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510131305.0A CN104829159B (en) 2015-03-24 2015-03-24 A kind of template self-compacting concrete special slow release controllable type polycarboxylate water-reducers of CRTS III

Publications (2)

Publication Number Publication Date
CN104829159A true CN104829159A (en) 2015-08-12
CN104829159B CN104829159B (en) 2017-12-05

Family

ID=53807417

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510131305.0A Active CN104829159B (en) 2015-03-24 2015-03-24 A kind of template self-compacting concrete special slow release controllable type polycarboxylate water-reducers of CRTS III

Country Status (1)

Country Link
CN (1) CN104829159B (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105293987A (en) * 2015-11-23 2016-02-03 中国建筑材料科学研究总院 Poly carboxylic acid series compound water reducing agent used for hydraulic self-compacting concrete and preparation method and application
CN105439502A (en) * 2015-10-22 2016-03-30 中铁四局集团有限公司 Self-compacting concrete for CRTS III plate-type ballastless track filling layer and preparation method for self-compacting concrete
CN106186782A (en) * 2016-07-02 2016-12-07 曹平 A kind of concrete retarding water reducer
CN106587706A (en) * 2016-12-07 2017-04-26 湖北工业大学 High self-compaction and reciprocity polycarboxylic acid water reducing agent composition for concrete
CN109231874A (en) * 2018-09-21 2019-01-18 佛山齐安建筑科技有限公司 A kind of concrete air-entrainer and preparation method thereof
CN110938176A (en) * 2018-09-25 2020-03-31 中建材中岩科技有限公司 Super-long slump loss resistant cement-based polycarboxylate superplasticizer mother liquor and application thereof
CN111362612A (en) * 2018-12-26 2020-07-03 江苏苏博特新材料股份有限公司 Polycarboxylate superplasticizer special for rock-fill dam C15 self-compacting concrete
CN112592138A (en) * 2020-12-31 2021-04-02 中铁十局集团有限公司 Single-component active synchronous mortar with controllable setting time and preparation method thereof
CN115073041A (en) * 2021-03-11 2022-09-20 北京都市绿源环保科技有限公司 Additive for controllable low-strength backfill material and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101983975A (en) * 2010-10-21 2011-03-09 安徽中铁工程材料科技有限公司 Preparation method of polycarboxylic acid water reducer
CN102010487A (en) * 2010-10-21 2011-04-13 安徽中铁工程材料科技有限公司 Method for preparing polycarboxylate water reducing agent
CN103086634A (en) * 2013-01-22 2013-05-08 中铁五局(集团)有限公司 Water reducing agent special for high-speed railway ballastless track self-compacting concrete
CN104371073A (en) * 2014-10-30 2015-02-25 中铁四局集团有限公司 Normal-temperature preparation method of slow-release polycarboxylic acid water reducing agent

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101983975A (en) * 2010-10-21 2011-03-09 安徽中铁工程材料科技有限公司 Preparation method of polycarboxylic acid water reducer
CN102010487A (en) * 2010-10-21 2011-04-13 安徽中铁工程材料科技有限公司 Method for preparing polycarboxylate water reducing agent
CN103086634A (en) * 2013-01-22 2013-05-08 中铁五局(集团)有限公司 Water reducing agent special for high-speed railway ballastless track self-compacting concrete
CN104371073A (en) * 2014-10-30 2015-02-25 中铁四局集团有限公司 Normal-temperature preparation method of slow-release polycarboxylic acid water reducing agent

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105439502A (en) * 2015-10-22 2016-03-30 中铁四局集团有限公司 Self-compacting concrete for CRTS III plate-type ballastless track filling layer and preparation method for self-compacting concrete
WO2017067411A1 (en) * 2015-10-22 2017-04-27 中铁四局集团有限公司 Self-compacting concrete for use as crts iii slab ballastless railway track filler layer and method for preparation thereof
CN105293987A (en) * 2015-11-23 2016-02-03 中国建筑材料科学研究总院 Poly carboxylic acid series compound water reducing agent used for hydraulic self-compacting concrete and preparation method and application
CN106186782A (en) * 2016-07-02 2016-12-07 曹平 A kind of concrete retarding water reducer
CN106587706A (en) * 2016-12-07 2017-04-26 湖北工业大学 High self-compaction and reciprocity polycarboxylic acid water reducing agent composition for concrete
CN106587706B (en) * 2016-12-07 2018-09-07 湖北工业大学 A kind of self-compaction high workability concrete polycarboxylate superplasticizer composition
CN109231874A (en) * 2018-09-21 2019-01-18 佛山齐安建筑科技有限公司 A kind of concrete air-entrainer and preparation method thereof
CN110938176A (en) * 2018-09-25 2020-03-31 中建材中岩科技有限公司 Super-long slump loss resistant cement-based polycarboxylate superplasticizer mother liquor and application thereof
CN110938176B (en) * 2018-09-25 2022-03-15 中建材中岩科技有限公司 Super-long slump loss resistant cement-based polycarboxylate superplasticizer mother liquor and application thereof
CN111362612A (en) * 2018-12-26 2020-07-03 江苏苏博特新材料股份有限公司 Polycarboxylate superplasticizer special for rock-fill dam C15 self-compacting concrete
CN111362612B (en) * 2018-12-26 2022-03-18 江苏苏博特新材料股份有限公司 Polycarboxylate superplasticizer special for rock-fill dam C15 self-compacting concrete
CN112592138A (en) * 2020-12-31 2021-04-02 中铁十局集团有限公司 Single-component active synchronous mortar with controllable setting time and preparation method thereof
CN112592138B (en) * 2020-12-31 2022-07-12 中铁十局集团有限公司 Single-component active synchronous mortar with controllable setting time and preparation method thereof
CN115073041A (en) * 2021-03-11 2022-09-20 北京都市绿源环保科技有限公司 Additive for controllable low-strength backfill material and preparation method thereof

Also Published As

Publication number Publication date
CN104829159B (en) 2017-12-05

Similar Documents

Publication Publication Date Title
CN104829159A (en) A slow-release controllable polycarboxylic acid water reducer specially used for self-compacting concrete for CRTSIII type plates
CN103130436B (en) Oxidized graphene and graphene reinforced cement based composite material and preparation method thereof
CN114685083B (en) Polycarboxylate superplasticizer for sleeve grouting material for prefabricated part, grouting material thereof and use method of polycarboxylate superplasticizer
CN105293974B (en) A kind of concrete is combined super instant coagulant and its application method
CN104129943A (en) Wet-mixed mortar admixture as well as preparation method and application thereof
CN102936110B (en) Lignosulfonate-polycarboxylic acid copolymerized composite high-performance water reducer and preparation method thereof
CN103641358B (en) Effective pumping aid in premixing commodity packing design polycarboxylic acid series
CN102532435B (en) Polycarboxylene high-performance water reducing agent and preparation method thereof
CN105272070A (en) Cement grouting material
CN103865007A (en) Preparation method of viscosity-reduction type polycarboxylate water reducer
CN103641370A (en) Composite cement enhanced grinding aid containing amide polyamine polycarboxylic acids and preparation method therefor
CN102276184B (en) Retarding and water reducing agent for occlusal pile of subway drilling
CN105111383A (en) Process for preparing high-performance polycarboxylic acid type water-reducing agent by combined macromonomers at normal temperature
CN110002815A (en) A kind of rapid hardening water resistant dispersion cement based grouting material and preparation method
CN102659338B (en) Polycarboxylic water reducer applicable to manufactured sand and preparation method of polycarboxylic water reducer
CN103539416B (en) A kind of anti-shearing synchronous grouting dedicated mortar and its preparation method
CN103803843B (en) Viscosity modifier and preparation method thereof and Self-leveling self-compacting concrete
CN111606625B (en) Formula and preparation method of C70 high-strength self-compacting concrete
CN107382130A (en) Good water reducer of a kind of performance and preparation method thereof
CN111484270A (en) Ultra-long-distance concrete pumping agent
CN105314913B (en) It is a kind of to solve the problems, such as the preparation method that polycarboxylate water-reducer isolates bleeding conditioning agent
CN105271888A (en) Modification additive suitable for low-quality aggregate concrete, and preparation method thereof
CN113173728B (en) Alkali-free accelerator for resisting aggregate alkali activity reaction and preparation method thereof
CN104591581B (en) A kind of concrete slump restorative and preparation method thereof
CN103992057B (en) Solve the method for the delayed bleeding of concrete

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
EXSB Decision made by sipo to initiate substantive examination
SE01 Entry into force of request for substantive examination
C41 Transfer of patent application or patent right or utility model
TA01 Transfer of patent application right

Effective date of registration: 20160721

Address after: Hefei City, Anhui province 230023 Wangjiang Road No. 96

Applicant after: CHINA TIESIJU CIVIL ENGINEERING GROUP Co.,Ltd.

Applicant after: ANHUI ZHONGTIE ENGINEERING MATERIAL TECHNOLOGY Co.,Ltd.

Address before: 230041 No. 338 Tianhe Road, Luyang Industrial Park, Anhui, Hefei, China

Applicant before: ANHUI ZHONGTIE ENGINEERING MATERIAL TECHNOLOGY Co.,Ltd.

GR01 Patent grant
GR01 Patent grant